LiNbO3 (LN) crystal is widely used as frequency doublers for wavelength greater than 1000um and optical parametric oscillators (OPOs)  pumped  at  1064 nm  and  quasi-phase-matched (QPM)  devices.  Due to its unique electro-optical,photoelastic, piezoelectric and non-linear properties,  Lithium Niobate is widely used in a variety of integrated and active acousto-optical devices. The material is Czochralsky grown and poled along Z-axis.